Title :
A 2.4 GHz CMOS power amplifier using internal frequency doubling
Author :
Cijvat, Elle ; Troedsson, Niklas ; Sjöland, Henrik
Author_Institution :
Dept. of Electroscience, Lund Univ., Sweden
Abstract :
A fully integrated 0.18 μm 1P6M CMOS power amplifier using internal frequency doubling is presented. Two chips were measured, one stand-alone PA and one PA with a VCO on the same chip. Since the PA and VCO operate at different frequencies, this configuration is suitable for direct-upconversion or low-IF upconversion since oscillator pulling is reduced. The maximum output power is 15 dBm, and the maximum drain efficiency is 10.7% at an output operating frequency of 2.4 GHz.
Keywords :
CMOS analogue integrated circuits; UHF power amplifiers; frequency multipliers; integrated circuit design; voltage-controlled oscillators; 0.18 micron; 2.4 GHz; CMOS power amplifier; VCO; direct-upconversion; drain efficiency; internal frequency doubling; low-IF upconversion; oscillator pulling; output power; CMOS technology; Circuit testing; Frequency; Impedance; Knee; Parasitic capacitance; Power amplifiers; Power generation; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465179
